County profile · official public datasets

Bryan County, OK

286 public highway bridges tracked in the FHWA National Bridge Inventory: 41.6% rated Good, 48.6% Fair, 9.8% Poor.

286
Public bridges
41.6%
Good condition
9.8%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Bryan County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

54th
of 77 on Poor share
9.8%
Poor-condition share
286
public highway bridges
1974
avg year built

Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.

Bryan County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Bryan County ranks #54 of 77 Oklahoma counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 9.8%). Bryan County, Oklahoma contains 286 public highway bridges. Roughly 41.6% are rated “Good,” 48.6% “Fair,” and 9.8% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

Total bridges

286

Public highway bridges in Bryan County

Good condition

41.6%

119 of 286 rated 7-9

Fair condition

48.6%

139 of 286 rated 5-6

Poor condition

9.8%

28 of 286 rated 4 or below

In-state Poor-share rank

#54 of 77

Among Oklahoma counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 286 NBI-tracked bridges by lowest applicable component rating.

Good
41.6% (119)
Fair
48.6% (139)
Poor
9.8% (28)

Bryan County's Poor-condition bridges carry 3,410 vehicle crossings a day

That is 0.5% of the county's reported daily bridge traffic on 9.8% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 122 crossings a day against 2,665 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.

Computed over the 286 of 286 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

50% of Bryan County's bridges have passed the 50-year mark

143 of the 286 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 41.6% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.

Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.

One structure carries 22% of the county's Poor-condition bridge traffic

FAU 3610(RODEO RD. over UP R.R. UNDER, built 1907, carries 750 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 28-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 3,410 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Bryan County's bridges were built

286 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1930s, when 57 of the county's bridges still in the inventory were built, which is 19.9% of those with a recorded year. That cohort is now 85 to 94 years old in the 2024 inventory. Its average build year (1974) matches the Oklahoma average (1977).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

How Bryan County compares with Oklahoma's closest counties by inventory size

The 5 Oklahoma counties nearest Bryan County in number of bridges, with their condition splits. Its 9.8% Poor share is the 4th-lowest of these 6. Its average build year of 1974 against a peer-group mean of 1970 is in line with the group.

Showing the 5 closest of 76 Oklahoma counties eligible for comparison.

Bridge inventory size and condition shares for Bryan County and the 5 Oklahoma counties closest to it in inventory size
County Bridges Poor
Seminole County 298 11.7%
Kingfisher County 297 6.7%
Jackson County 292 2.4%
Bryan County (this page) 286 9.8%
Logan County 284 20.1%
Tillman County 284 2.5%

Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Bryan County's. Source: FHWA National Bridge Inventory, 2024 release.

Nationwide counties with similar inventory size or average build year

Two NBI-derived peer sets for Bryan County, both outside Oklahoma so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside OK (286 bridges here).

Similar average build year

Nearest mean year-built outside OK (1974 here).

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All 286 Good 119 Fair 139 Poor 28

Fair-condition bridges (139)

S.H. 70E

Fair

Over: CREEK

28.60 E & N JCT SH-78, Bryan, OK

Built 1958 Load: 35.5 t ADT: 240

S.H. 78

Fair

Over: YARNABY CREEK

3.32 N TX S/L, Bryan, OK

Built 1934 Load: 36.3 t ADT: 1,400

S.H. 199

Fair

Over: WASHITA RIVER

4W JCT S.H. 78, Bryan, OK

Built 2013 Load: 36.3 t ADT: 670

S.H. 22

Fair

Over: CREEK

9.56 E JOHNSTON C/L, Bryan, OK

Built 1939 Load: 37.2 t ADT: 1,200

N3880

Fair

Over: CREEK

3.E 1.2S OF ALBANY, Bryan, OK

Built 1988 Load: 37.2 t ADT: 30

SUNNYSIDE DR

Fair

Over: U.S. 70 BYPASS UNDER

1.00 S JCT US-70, Bryan, OK

Built 2010 Load: 37.2 t ADT: 1,000

S.H. 22

Fair

Over: CREEK

1.75 E JOHNSTON C/L, Bryan, OK

Built 1959 Load: 37.3 t ADT: 450

S.H. 78

Fair

Over: CANEY CREEK

21. N & W TX S/L, Bryan, OK

Built 1950 Load: 38.1 t ADT: 3,200

N3920

Fair

Over: SULPHUR CREEK

2.7S OF BENNINGTON, Bryan, OK

Built 1937 Load: 39.0 t ADT: 100

E2260

Fair

Over: PEPPER CREEK

2.4 S 1.2 E OF KEMP, Bryan, OK

Built 1997 Load: 39.0 t ADT: 100

S.H. 78

Fair

Over: RED RIVER

OK TEXAS STATE LINE, Bryan, OK

Built 2020 Load: 39.7 t ADT: 2,000

0758C

Fair

Over: CREEK

1.5 S .9 E MAYTOY, Bryan, OK

Built 1940 Load: 39.9 t ADT: 50

N3930

Fair

Over: CREEK

.1S OF SMITH-LEE, Bryan, OK

Built 1938 Load: 39.9 t ADT: 100

E2140

Fair

Over: MOORE CREEK

1.5 E OF OLIVE, Bryan, OK

Built 1998 Load: 39.9 t ADT: 24

URY DR

Fair

Over: U.S. 69 UNDER

8.53 N JCT US-69 BUS, Bryan, OK

Built 1982 Load: 40.8 t ADT: 100

S.H. 22

Fair

Over: U.S. 69 UNDER

15.96 N JCT US-69 BUS, Bryan, OK

Built 1982 Load: 40.8 t ADT: 1,500

E2190

Fair

Over: WEBB CREEK

1.5 MI W OF ACHILLE, Bryan, OK

Built 1988 Load: 41.7 t ADT: 50

S.H. 48

Fair

Over: CREEK

4.69 N JCT SH-78, Bryan, OK

Built 1961 Load: 43.1 t ADT: 3,000

N3650

Fair

Over: CREEK

2.5E .2S OF CARTWRIGHT, Bryan, OK

Built 2010 Load: 45.4 t ADT: 20

U.S. 69

Fair

Over: CREEK

8.04 N JCT US-69 BUS, Bryan, OK

Built 1973 Load: 47.2 t ADT: 17,900

S.H. 22

Fair

Over: CREEK

6.85 E JOHNSTON C/L, Bryan, OK

Built 1959 Load: 47.3 t ADT: 1,200

U.S. 69

Fair

Over: ROCK CREEK

5.34 N JCT US-69 BUS, Bryan, OK

Built 1971 Load: 51.1 t ADT: 20,100

FISH HATCHERY RD

Fair

Over: U.S. 69 UNDER

10.65 N JCT US-69 BUS, Bryan, OK

Built 1982 Load: 53.5 t ADT: 100

U.S. 69 NB

Fair

Over: S.H. 91 UNDER

2.50 N TX S/L, Bryan, OK

Built 1960 Load: 54.4 t ADT: 14,700

U.S. 69 SB

Fair

Over: S.H. 91 UNDER

2.50 N TX S/L, Bryan, OK

Built 1960 Load: 54.4 t ADT: 14,850

S.H. 70E

Fair

Over: RICE CREEK

20.47 E JCT SH-78, Bryan, OK

Built 1958 Load: 55.8 t ADT: 360

E2210

Fair

Over: CREEK

0.5 MI E OF YUBA, Bryan, OK

Built 1970 Load: 59.9 t ADT: 24

E2090

Fair

Over: WHITEGRASS CREEK

1.2 S.&3.7 E. OF BENNINGT, Bryan, OK

Built 1975 Load: 59.9 t ADT: 100

E2000

Fair

Over: PINE CREEK

.7 MI E SEVENMILE CORN, Bryan, OK

Built 1950 Load: 65.3 t ADT: 50

N3750

Fair

Over: JOHNSON CREEK

.5N 2.5W OF ARMSTRONG, Bryan, OK

Built 2004 Load: 68.0 t ADT: 50

S.H. 91

Fair

Over: SANDY CREEK

7.51 N & E TX S/L, Bryan, OK

Built 1960 Load: 78.1 t ADT: 2,200

S.H. 22

Fair

Over: CREEK

11.23 E & S JCT US-69, Bryan, OK

Built 1968 Load: 86.9 t ADT: 800

U.S. 70

Fair

Over: SASSAFRAS BRANCH CREEK

17.20 E JCT SH-78, Bryan, OK

Built 1966 Load: 88.7 t ADT: 3,300

S.H. 22

Fair

Over: BOKCHITO CREEK

10.15 E & S JCT US-69, Bryan, OK

Built 1968 Load: 89.1 t ADT: 800

S.H. 22

Fair

Over: MCCLELLAN CREEK

3.98 E JOHNSTON C/L, Bryan, OK

Built 1959 Load: 90.7 t ADT: 480

U.S. 69

Fair

Over: CREEK

1.68 N TX S/L, Bryan, OK

Built 1960 Load: 90.7 t ADT: 29,700

S.H. 91

Fair

Over: CREEK

7.22 N & E TX S/L, Bryan, OK

Built 1960 Load: 90.7 t ADT: 2,200

S.H. 48

Fair

Over: MCCLELLAN CREEK

5.89 N JCT SH-78, Bryan, OK

Built 1961 Load: 90.7 t ADT: 3,000

E2070

Fair

Over: WINTERS CREEK

2. E BENNINGTON, Bryan, OK

Built 1994 Load: 92.5 t ADT: 75

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.